package com.happy.memcache;

import java.util.Date;

import com.danga.MemCached.MemCachedClient;
import com.danga.MemCached.SockIOPool;

public class MemCachedManager {
	// 创建全局的唯一实例
	protected static MemCachedClient mcc = new MemCachedClient();
	protected static MemCachedManager memCachedManager = new MemCachedManager();

	/**
	 * 保护型构造方法，不允许实例化！
	 * 
	 */
	protected MemCachedManager() {
	}

	/**
	 * 获取唯一实例.
	 * 
	 * @return
	 */
	public static MemCachedManager getInstance() {
		
		return memCachedManager;
	}

	// 设置与缓存服务器的连接池
	static {
		
		// 服务器列表和其权重
		String[] servers = { "192.168.0.110:11211" };
		Integer[] weights = { 3 };

		// 获取socke连接池的实例对象
		SockIOPool pool = SockIOPool.getInstance();

		// 设置服务器信息
		pool.setServers(servers);
		pool.setWeights(weights);

		// 设置初始连接数、最小和最大连接数以及最大处理时间
		pool.setInitConn(5);
		pool.setMinConn(5);
		pool.setMaxConn(250);
		pool.setMaxIdle(1000 * 60 * 60 * 6);

		// 设置主线程的睡眠时间
		pool.setMaintSleep(30);

		// 设置TCP的参数，连接超时等
		pool.setNagle(false);
		pool.setSocketTO(3000);
		pool.setSocketConnectTO(0);

		// 初始化连接池
		pool.initialize();

		// 压缩设置，超过指定大小（单位为K）的数据都会被压缩
		mcc.setCompressEnable(true);
		mcc.setCompressThreshold(64 * 1024);

	}

	/**
	 * 添加一个指定的值到缓存中.
	 * 
	 * @param key
	 * @param value
	 * @return
	 */
	public boolean add(String key, Object value) {
		return mcc.add(key, value);
	}

	public boolean add(String key, Object value, Date expiry) {
		return mcc.add(key, value, expiry);
	}

	public boolean replace(String key, Object value) {
		return mcc.replace(key, value);
	}

	public boolean replace(String key, Object value, Date expiry) {
		return mcc.replace(key, value, expiry);
	}

	/**
	 * 根据指定的关键字获取对象.
	 * 
	 * @param key
	 * @return
	 */
	public Object get(String key) {
		return mcc.get(key);
	}
	/**
	 * 刪除key
	 * @param key
	 */
	public void delete(String key)
	{
		mcc.delete(key);
	}
	/**
	 * 判断是否存在
	 * @param key
	 * @return
	 */
	public boolean isExists(String key)
	{
		return mcc.keyExists(key);
	}
	 public static void main(String[] args) {  
		        MemCachedManager cache = MemCachedManager.getInstance();  
		        cache.add("test", "过期日期",new Date(System.currentTimeMillis()+60*1000));
		        System.out.println(cache.get("hello"));
		        System.out.println(cache.isExists("hello"));
		        if(cache.isExists("hello")){
			         cache.replace("hello", 1121231);  
		        }
		         System.out.print("get value : " + cache.get("hello"));  
		     }  

}
